current bounds on the number of colors: 0 -- 103
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:25:18 2012
Optimize a model with 13669 rows, 5519 columns and 45951 nonzeros
Presolve removed 1 rows and 51 columns
Presolve time: 0.10s
Presolved: 13668 rows, 5468 columns, 45900 nonzeros
Variable types: 0 continuous, 5468 integer (5468 binary)
Root relaxation: objective 0.000000e+00, 273 iterations, 0.01 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
* 0 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (273 simplex iterations) in 0.11 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%
current bounds on the number of colors: 0 -- 51
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:25:18 2012
Optimize a model with 6753 rows, 2841 columns and 22525 nonzeros
Presolve removed 1 rows and 25 columns
Presolve time: 0.03s
Presolved: 6752 rows, 2816 columns, 22500 nonzeros
Variable types: 0 continuous, 2816 integer (2816 binary)
Root relaxation: objective 0.000000e+00, 230 iterations, 0.00 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
* 0 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (230 simplex iterations) in 0.04 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%
current bounds on the number of colors: 0 -- 25
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:25:18 2012
Optimize a model with 3295 rows, 1502 columns and 10812 nonzeros
Presolve removed 1 rows and 12 columns
Presolve time: 0.01s
Presolved: 3294 rows, 1490 columns, 10800 nonzeros
Variable types: 0 continuous, 1490 integer (1490 binary)
Root relaxation: objective 0.000000e+00, 222 iterations, 0.00 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
* 0 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (362 simplex iterations) in 0.02 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%
current bounds on the number of colors: 0 -- 12
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:25:18 2012
Optimize a model with 1699 rows, 884 columns and 5406 nonzeros
Presolve removed 1 rows and 6 columns
Presolve time: 0.01s
Presolved: 1698 rows, 878 columns, 5400 nonzeros
Variable types: 0 continuous, 878 integer (878 binary)
Root relaxation: objective 0.000000e+00, 229 iterations, 0.00 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
* 0 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (390 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%
current bounds on the number of colors: 0 -- 6
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:25:18 2012
Optimize a model with 901 rows, 575 columns and 2703 nonzeros
Presolve removed 1 rows and 3 columns
Presolve time: 0.00s
Presolved: 900 rows, 572 columns, 2700 nonzeros
Variable types: 0 continuous, 572 integer (572 binary)
Root relaxation: objective 0.000000e+00, 292 iterations, 0.00 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
0 0 0.00000 0 188 - 0.00000 - - 0s
0 0 0.00000 0 186 - 0.00000 - - 0s
0 0 0.00000 0 190 - 0.00000 - - 0s
0 0 0.00000 0 241 - 0.00000 - - 0s
0 0 0.00000 0 199 - 0.00000 - - 0s
0 0 0.00000 0 223 - 0.00000 - - 0s
0 0 0.00000 0 188 - 0.00000 - - 0s
0 0 0.00000 0 210 - 0.00000 - - 0s
0 0 0.00000 0 210 - 0.00000 - - 0s
0 2 0.00000 0 183 - 0.00000 - - 0s
Cutting planes:
Gomory: 1
Clique: 3
Zero half: 19
Explored 21 nodes (8130 simplex iterations) in 0.48 seconds
Thread count was 1 (of 16 available processors)
Model objective exceeds cutoff
Best objective -, best bound -, gap -
current bounds on the number of colors: 3 -- 6
Gurobi 5.0.1 (linux64) logging started Fri Dec 14 18:25:19 2012
Optimize a model with 1167 rows, 678 columns and 3604 nonzeros
Presolve removed 1 rows and 4 columns
Presolve time: 0.00s
Presolved: 1166 rows, 674 columns, 3600 nonzeros
Variable types: 0 continuous, 674 integer (674 binary)
Root relaxation: objective 0.000000e+00, 231 iterations, 0.00 seconds
Nodes | Current Node | Objective Bounds | Work
Expl Unexpl | Obj Depth IntInf | Incumbent BestBd Gap | It/Node Time
* 0 0 0 0.0000000 0.00000 0.0% - 0s
Explored 0 nodes (446 simplex iterations) in 0.01 seconds
Thread count was 1 (of 16 available processors)
Optimal solution found (tolerance 1.00e-04)
Best objective 0.000000000000e+00, best bound 0.000000000000e+00, gap 0.0%
optimal solution found: number of colors: 4